
BJT Differential Amplifier with Active Loads
Authored by Mekala k
English
12th Grade
Used 1+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of using active loads in a BJT differential amplifier?
To improve gain, linearity, and output swing of the amplifier.
To decrease the bandwidth of the amplifier
To reduce power consumption
To increase noise in the amplifier
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Explain the concept of common-mode rejection ratio (CMRR) in the context of a BJT differential amplifier with active loads.
CMRR is independent of common-mode signals
CMRR is not affected by the matching of transistors in the differential pair
CMRR is higher when the active loads are mismatched
CMRR in a BJT differential amplifier with active loads depends on the matching of transistors in the differential pair and the active loads, aiming for high rejection of common-mode signals.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the use of active loads improve the performance of a BJT differential amplifier?
Active loads reduce gain and linearity
Active loads increase input impedance, reduce loading effects, and enhance gain and linearity.
Active loads introduce more loading effects
Active loads decrease input impedance
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the key advantages of using a BJT differential amplifier with active loads?
Limited bandwidth, reduced gain, and poor linearity.
Lower input impedance, worse common-mode rejection ratio, and decreased temperature stability.
Higher input impedance, better common-mode rejection ratio, and improved temperature stability.
Higher power consumption, increased noise, and lower voltage swing.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Discuss the role of tail current source in a BJT differential amplifier with active loads.
The tail current source in a BJT differential amplifier with active loads has no impact on CMRR
The tail current source in a BJT differential amplifier with active loads sets the DC operating point and improves CMRR.
The tail current source in a BJT differential amplifier with active loads increases distortion
The tail current source in a BJT differential amplifier with active loads reduces the gain
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of biasing in a BJT differential amplifier with active loads?
Biasing increases the power consumption of the amplifier.
Biasing ensures stable and linear operation of the amplifier.
Biasing is irrelevant for the amplifier's performance.
Biasing causes distortion in the amplifier output.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Explain the working principle of a BJT differential amplifier with active loads.
The active loads are used to reduce the gain of the amplifier.
The working principle involves amplifying the voltage difference between two inputs using transistors in a differential configuration with active loads to achieve high gain and common-mode rejection.
The differential configuration is not necessary for the amplifier to function.
The working principle involves using capacitors instead of transistors for amplification.
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